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Black rectangular power brick with 5.5 x 2.5mm barrel connector and detachable mains cord

Graviton

Graviton 19V 4.74A 90W 5.5x2.5mm AC Adapter

SKU CH-QKGV-B7TX2

Delivers 19 V at 4.74 A through a 5.5 x 2.5 mm tip and includes a power cord for 100–240 V input

  • Delivers 90 W for reliable laptop charging
  • 19 V 4.74 A output matches original specs
  • 5 x 2.5 mm barrel fits many models
  • 100-240 V 50-60 Hz input works worldwide
  • CE certified for safety compliance

What this adapter powers

This 19V 4.74A 90W unit replaces the original charger for compatible laptops. It accepts 100-240V 50-60Hz input and delivers steady 19V output through a 5.5x2.5mm barrel plug. The package includes a matching power cord for immediate use.

The specification that decides fit

The 5.5mm outer and 2.5mm inner diameter must match the device socket exactly. Polarity and voltage are fixed at 19V 4.74A, so only models listed in the compatible part-number list will work. Buyers who need a different plug size or voltage cannot use this adapter.

What the bundled cord changes

A region-specific power cord is included in the box, so the adapter connects to EU, US, UK or AU mains without a separate purchase. The cord is rated for the 100-240V input range. Buyers who already own a compatible cord can store the spare or use it as a backup.

Highlights

  • Delivers 90 W for reliable laptop charging
  • 19 V 4.74 A output matches original specs
  • 5 x 2.5 mm barrel fits many models
  • 100-240 V 50-60 Hz input works worldwide
  • CE certified for safety compliance

Specifications

No published specifications for this item yet.

Questions about this item

What does the 90W rating mean when this adapter is connected to a laptop?

It means the unit can continuously deliver up to 90 watts at 19 volts and 4.74 amps to power the system and charge the battery.

The input range is 100-240V 50-60Hz — what does that cap in practice?

It allows worldwide use on mains voltages from 100 to 240 volts at either 50 or 60 hertz without a separate voltage selector.

Will the 5.5 x 2.5mm barrel plug fit my device's charging port?

The centre-positive barrel connector measures 5.5 millimetres outer diameter and 2.5 millimetres inner diameter; match those dimensions to your laptop's DC jack.

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